Pottery transfer brushing machine



Sept. 2, 1958 A. C. REscHKE PoTTERY TRANSFER BRUSHING MACHINE 2Sheets-Shet 1 Filed March 25, 1955 :M4 eineV Dit.

`INVNTOR.

ANNA C. REscHKE T TLZPNE Y 2 Sheets-Sheet 2 INVENTOR. ANNA C RescHKE A.C. RESCHKE POTTERY TRANSFER BRUSHING MACHINE il). Il

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FIG. 5

Sept. 2, 1958 Filed March 23, 1955 United States Patent() M POTTERYTRANSFER ,BRUSHING .MACHINE Anna C. Re'schke, Syracuse-N. Y.

Application March 23, 1955, Serial No. 496,188

l6 Claims. (Cl. 41-1) This invention relates t-o a machine for applyingtransfers to pottery, and more particularly-where such transfers arearranged in an annular pattern-around rim of plates, saucers and thelike.

In a Patent 2,685,753, granted August .10, 1954, there is disclosed apottery transfer brushing .machine which' .is an vimprovement .in whichmechanism is provided-for bringing plates, saucers, and othergenerallycircular dishes into flight engagement with the reciprocatingbrushing motion which may lbe along a linear or arcuate path, whilesimultaneously rotating such dishes "so Ithat -'the brushing action willbe uniformly applied over an annular area of the dish to which thetransfers are to be applied. The invention further has to do in one formthereof, with the provision of -a to and fro brushing movement, on anarcuate path, concentric with the axis of rotation of the saucers,plates and the like, and 'in which the radius of the path may be variedto conform to the radius ofthe region undergoing treatment. The machinecontemplates a foot control for accurately gauging v-the brushingpressure, and which control may be operated with a minimum of fatigue tothe operator.

The above land other novel features of the invention will appear morefully hereinafter from the yfollowing detailed description, when takenin conjunction with the accompanying drawings. It is expresslyunderstood that lthe drawings are employed for purposes of illustrationonly and are not designed as a definition of the limits of theinvention, lreference being had for this purpose 'to theappended'claims.

VIn the drawings, wherein like 'reference characters findicaftelikeparts:

Figure l is a front elevational view ofthe machine with the vforwardlegs cut away;

Figure -2 is a sectional vview 'taken substantially on 'the line 2f-2 ofFigure l;

Figure 3 Vis a fragmentary end elevational view of lthe treadle controltaken Vfrom the section 3--3 of Figure l;

Figure 4 isa fragmentary end view of the central llever fulcrummount as'viewed from the line 44Yof Figure 1;

Figure 5 'is 'a fragmentary -end elevation "of a modified form of theinvention'with parts in section; i

Figure 6 is a fragmentary side elevation, with parts in section of thefor-m shown in Figure 5';

Figure 7 -is a sectional view taken on the line 7--7 4of Figure 6; and

Figure 8 is an exploded view 'of the crossheadand crank elements.

Referring to Figure 1, there is `shown a work table l10 mounted on legyendfr'am'es 152 and-'14, such frames being 2,849,820 Fatented'sept.v32, `1958 ICC braced at thev rear by a horizontal angle iron -tier` barT'16 a-'nd =an-ang1eirondiagonal brace 18. Each of said end-frames yareprovided 'with `upper transverse table support f members 20 and 22, andlower cross braces 24 and 2'6.

-Uponthe table is rigidly mountedastandard ZSThaving -anioverhangingarm30, the arm supporting a reciprocating brushing member 32, driven byYalmot-or134,belt'drive 36 andcrank and' cross-head mechanism 38l inthedep'ending head 40 on the Aend `of the arm, the constructintof whichis `s'hown in detail in the 'Patent'2f,68 5,753 referred'to above.

'Gn vthe table, there tis also `rnoutit'etl'la vertical tubular :guide42, :such guide :having ra imountiri'ga'nge 44'rigidly secured tothetable. Within the tubularguideisa bear- .'ing sleeve 46 adapted to1slide vertically V'within"tl :le guide "42.fandwithin which isjournalled a vertical drive spindle 148. Thespindle has a threaded bore`'in its -upp'e'r e'n'dto .receive the threaded stem 50 of -a cir'c'iilrwork-Support, `:the support comprising a block-SZ-hav'ing fa fa'ce'53fcoiniplernental vto the :runder surface 'of fa relatively flat dishlor fplate, ithe block being mounted 'on -a :flange 54 integral with thethreaded stern 50. A thrust bearing in vthe .form-fof La washer v56 ispositionedbetween'theend of the .sleeve I58 and the underface 1"60 :of-t'he ilan'ge In fpractiee, the lthreads of fthe bore -a'nd stem 'v'villbe so correlated in respect I"to the direction of rotation vof E thespindle as lto maintain l'the work l"support "secure jupon vitlie tendofthe spindle.

.Provision is made for vertically sliding the beating *sleeve in the-guide by a Vfoot t'r'eadl'e, fand suitable 'linkfage, whereby anoperator 'may lift the Swork'su'pp'o'rt and work positionedth'ereon'in'to light frictional contactfwith the reciprocating brush.Such linkage comprises a Ilever 62 ifulcmrned at one end in a bracketdpendin'gfrr'n 'the cross-member 20, Vand having fa yoke V6 6 'fait theother end pivoted to the lower endgof the sleeve 46. A l'ever 68,fulcrumed on @a depending bracket 70 mounted "on the table 1`0`isconnected-at one-end'tofsaid le'v'erf62 by'a 72, land at the other endto a foot treadle co-nt'rtl 74, byfan-adjustableftension rod`76. l 'Thet-readl'e is pivotedjon the rear angle member 16 fon 'spaced fbracketsl7S and 80, ythe treadle being formed of spaced angle irons 82 and 84,having a foot plate'o at their forward ends. 'The rod 76 is pivotallyconnected 'to the angle iron 82 as at 88. A tension spring 9.0,cnrnecfted between the diagonal brace 1'8 and thea'n'gle iron 82 servesto 'counterbalance the treadle, and normally cause the sleeve 46 toretract to the lower position 'shown in Figure 1, when the workpiece isout of Contact with the 'reciprocating brush 32.

The spindle 48 is provided with a drive lpulley 22, the lait-ter beingdriven by a belt 93 extending to a pulley/Q35 lof a gear vreduction 94connected to a drive m'otor i916. The belt fwill be of sufficient lengthto permit limited vertical movement of the pulley 9 2, without dangerofi: l`1e belt being thrown therefrom, The reduction and motor varemounted on a p late 98 resiliently and adjustably secured tjo the endframe 14 as by bolts 1'00and 1 0'2, and springs 104 and 106, the spring104 holding lt l:1 'epli 1 te resiliently against the end frame 14 whilethe spii'g 1'06 resiliently tensions the be1t93.

Convenient switches 10S and 110 are .providedon the "table 10 forcontinuing the power to the 'motor 9'6, and

motor '34. A guard 112 enshrouds the belt 93, theguard being supportedon a depending bracket 114 'from the around the rim of the plate, thespindle 48 is caused to rotate, and lifted so as to bring the rim of theplate into light engagement with the reciprocating brush 32, throughoperation of the foot treadle 74. Thus the manual effort of holding theplate true beneath the brush is practically eliminated, and the brushperforms a uniform wiping pressure over the annular transfer area as thework support rotates.

The standard may be adjusted so as to swing the arm to locate the travelof the brush along tangential lines located radially from the center. ofthe spindle, at such distance as the diameter of the particular dish andpattern being applied thereto may require.

In the modified form of the invention, in Figures and 6 there is shown astandard 120 mounted on the table 10, such standard having anoverhanging arm 122 which is adapted to support an oscillating lever 124on a pivot 126 mounted in the pivot block 128. The axis of the pivot 126is aligned with the axis of the work support 52. The lever 124 at oneend carries a brush socket 130, in which is secured a brush 132 or otherburnishing device. The brush socket 130 is mounted on the lever end atan angle as is shown at 134, so that the brush will bear against vtherim 136 of the dish substantially normal to the annular beveled surfacethereof. Such angle can be varied to suit the'work piece.

The lever 124 is provided with a number of perforations 138 along itslength so that the radius of the brush in its oscillation about thepivot 126 may be varied for plates or saucers and the like of varyingdiameter. The opposite end of the lever 124 is provided with a block 140having a swivel pin 142 journalled in an aperture in the lever end, andsuch block is connected by a link 144 which has a rectangular sectionedend 146 that extends into the crank and crosshead housing 148. Thestandard 120 has a short bearing support arm 150 in which is journalledthe shaft 152, which shaft is driven by a pulley 154, a belt 156 and adrive motor 158 having a drive pulley 160, the motor being mounted uponthe standard 120.

The crosshead mechanism is shown in Figure 8, the housing comprising alower section 162 having guideways 164 and 166, and a hollow space 168to accommodate the crosshead and crank. The rectangular sectioned end146 of the rod 144 slides in the guideways 164 and 166, and has on itsupper face a transverse crosshead channel 170 adapted to receive theroller 172 which is driven in a circular path 1by the crank pin 174 onthe crank disk 176. The crank disk is secured to the shaft 152, whichextends outwardly through the bushing v178 in the top housing member130, which is also hollow to provide space for the crank and crosshead.

Upon rotation of the shaft 152, the rod 144 is caused to reciprocate,and such motion causes the lever 124 to oscillate so that the brush 132will provide a suitable arcuate rubbing action upon the transfer beingapplied to the dish 136. The crosshead housing 148 is free to swingabout the axis of the shaft 152 as is necessary to cornpensate for thearcuate path followed by the end of the lever 124 to which the rod 144is attached. The oscillatory movement of the lever 124 may be varied bychanging the radial distance between the pivot block 140 and the pivotpin 126, the perforations 138 rendering this possible.

In practice, it will `be understood that a partially tired plate isprovided with the transfer having the design or pattern applied to theplate, and that such transfer is caused to be transferred to the plateby the brushing or burnishing action of the brush 132 which oscillatesrapidly in an arcuate path while the plate rotates at a desired speed.Thereafter, the work support is lowered and stopped, the plate removed,and finished by further ring to provide the desired glazed surface.

While two forms of the invention have been illustrated and described, itis to be understood that the invention in exploded form is not limitedthereto. As various changes in the construction and arrangement may bemade without departing from the spirit of the invention, as will beapparent to those skilled in the art, reference will be had to theappended claims for a definition of the limits of the invention.

What is claimed is:

1. A pottery transfer brushing machine comprising a work table having avertical tubular guide mounted therein,` a sleeve bearing slidablymounted in said guide, a spindle journalled in said sleeve and having awork holder aixed on its upper end adapted to support a plate forrotation, a thrust bearing acting between said holder and the upper endof said sleeve, means for continuously driving said spindle, meansmounted below said table including a lever operatively connected to saidsleeve for elevating said sleeve in said guide, and a standard on saidtable having an oscillating brush depending toward said work holder,said brush oscillating in a plane parallel with said table and through apath which lies laterally spaced from the axis of said spindle, andwhich is substantially symmetrical to a radius extending from the axisto the mid point of the path.

2. A pottery transfer brushing machine comprising a work table having avertical tubular guide mounted therein, a sleeve bearing slidablymounted in said guide, a spindle journalled in said sleeve and having awork holder for plates affixed on its upper end and having threadedengagement with said spindle, a thrust bearing acting between saidholder and the upper end of said sleeve, means for continuously drivingsaid spindle to rotate said work holder, foot-operated means mountedbelow said table including a lever operatively connected to said sleevefor elevating said sleeve in said guide, and a standard on said tablehaving an oscillating brush depending toward said work holder, saidbrush oscillating in a plane parallel with said table and through a pathwhich liesl laterally spaced from the axis of said spindle and which issubstantially symmetrical to a radius extending from the axis to the midpoint of the path.

3. A pottery transfer brushing machine comprising a work tablecomprising a work top and end support frames, a vertical tubular guidemounted on said work top, a sleeve bearing slidable in said guide, aspindle extending through said sleeve bearing and journalled therein, arotatable work holder for plates having threaded engagement with the endof said spindle, a thrust means adapted to bear against the upper end ofsaid bearing sleeve, a pulley affixed to the lower end of said spindlebelow said bearing sleeve, motor and belt drive means for said pulleymounted on o-ne of said end frames, and laterally disposed in respect tosaid spindle, a lever laterally disposed beneath said work top andhaving a yoke connection to the lower end of said sleeve and pivotallymounted upon said other end frame, a foot treadle pivotally mountedbetween said frames, linkage connecting said treadle with said leverwhereby to elevate said sleeve through foot operation of saidtreadle, astandard having an overhanging arm mounted on said table top, anoscillating brush carried on said arm and adapted for oscillation in aplane parallel with the table top, said lbrush being located over saidwork holder and oscillating along a path, the mid portion of which liessubstantially perpendicular to a radius extending from the axis of saidspindle, and power means for oscillating said brush.

4. A pottery transfer brushing machine comprising a work table having avertical spindle journalled therein, a work holder for plates afxed onthe upper end, means for rotating the work holder, a standard on saidtable for supporting an oscillating brush, said standard having a pivotmount located over and in alignment with said spindle, a brushsupporting lever pivotally secured in said mount, power means foroscillating said lever, a brush mounted on said lever extending towardsaid work holder, and means for relatively moving the work holder andoscillating brush toward and away from each other to engage the 'brushwith an annular area of a plate when supported on said holder.

5. A pottery transfer brushing machine comprising a work table having avertical spindle journalled therein, a work holder for plates axed onthe upper end, means for rotating the work holder, a standard on saidtable for supporting an oscillating brush, said standard having a pivotmount located over and in alignment with said spindle, a brushsupporting lever pivotally secured in said mount, power means foroscillating said lever, a brush mounted yon said lever extending towardsaid work holder and adapted to be oscillated through an arc concentricwith said spindle, means for varying the radius of said arc, and meansfor relatively moving the work holder and oscillating brush toward andaway from each other to engage the brush with an annular area of a platewhen supported on said holder.

6. A pottery transfer brushing machine comprising a work tablecomprising a work top and end support frames, a vertical tu'bular guidemounted on said work top, a sleeve bearing slidable in said guide, aspindle extending through said sleeve bearing and journalled therein,said spindle having a threaded axial bore in the upper end thereof, arotatable Work holder for plates having a threaded stern adapted to besecured in said bore and a thrust face adapted to bear against the upperend of said bearing sleeve, a pulley aixed to the lower end of saidspindle below said bearing sleeve, motor and 'belt drive means for saidpulley mounted on one of said end frames, and laterally disposed inrespect to said spindle, a lever laterally disposed beneath said worktop and hav ing a yoke connection to the lower end of said sleeve andpivotally mounted upon said other end frame, a foot treadle pivotallymounted between said frames, linkage connecting said treadle with saidlever whereby to elevate said sleeve through foot operation of saidtreadle, a standard on said table for supporting an oscillating brush,said standard having a pivot mount located over and in alignment withsaid spindle, a brush supporting lever pivotally secured in said mount,power means for oscillating said lever, and a brush mounted on saidlever extending toward said work holder and adapted to be oscillatedthrough an arc concentric with said spindle,v

and adapted to be 'brought into engagement with an annular area of aplate supported on said work holder upon elevation thereof.

References Cited in the le of this patent UNITED STATES PATENTS ReschkeAug. 10, 1954

